Title: Comparative toxicity of 24 manufactured nanoparticles in human alveolar epithelial and macrophage cell lines
Authors: Lanone, Sophie ×
Rogerieux, Françoise
Geys, Jorina
Dupont, Aurélie
Maillot-Marechal, Emmanuelle
Boczkowski, Jorge
Lacroix, Ghislaine
Hoet, Peter #
Issue Date: Apr-2009
Publisher: BioMed Central
Series Title: Particle & Fibre Toxicology vol:6 pages:14
Abstract: ABSTRACT: BACKGROUND: A critical issue with nanomaterials is the clear understanding of their potential toxicity. We evaluated the toxic effect of 24 nanoparticles of similar equivalent spherical diameter and various elemental compositions on 2 human pulmonary cell lines: A549 and THP-1. A secondary aim was to elaborate a generic experimental set-up that would allow the rapid screening of cytotoxic effect of nanoparticles. We therefore compared 2 cytotoxicity assays (MTT and Neutral Red) and analyzed 2 time points (3 and 24 hours) for each cell type and nanoparticle. When possible, TC50 (Toxic Concentration 50 i.e. nanoparticle concentration inducing 50% cell mortality) was calculated. RESULTS: The use of MTT assay on THP-1 cells exposed for 24 hours appears to be the most sensitive experimental design to assess the cytotoxic effect of one nanoparticle. With this experimental set-up, Copper- and Zinc-based nanoparticles appear to be the most toxic. Titania, Alumina, Ceria and Zirconia-based nanoparticles show moderate toxicity, and no toxicity was observed for Tungsten Carbide. No correlation between cytotoxicity and equivalent spherical diameter or specific surface area was found. CONCLUSION: Our study clearly highlights the difference of sensitivity between cell types and cytotoxicity assays that has to be carefully taken into account when assessing nanoparticles toxicity.
ISSN: 1743-8977
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Environment and Health - miscellaneous
Occupational, Environmental and Insurance Medicine (-)
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science